506 + Mcqs in Friction in solids and liquids McqOptions

1.	Vapor pressure in manometric method is measured with help of
A.	oxygen
B.	chlorine
C.	mercury
D.	bromine
Answer» D. bromine

Discussion

2.	If we cool molten crystalline solids rapidly they form
A.	crystalline solids
B.	amorphous solids
C.	virtual solids
D.	liquids
Answer» C. virtual solids

Discussion

3.	Dimensions of unit cell are present along
A.	edges and axes
B.	only edges
C.	only axes
D.	only sides
Answer» B. only edges

Discussion

4.	Early diagnosis of breast cancer is possible by use of
A.	gases
B.	plasma
C.	solids
D.	liquid crystals
Answer» E.

Discussion

5.	Crystals of phosphorus and carbon dioxide are
A.	non polar molecular solids
B.	polar molecular solids
C.	neutral solids
D.	ionic solids
Answer» B. polar molecular solids

Discussion

6.	In metals there is assembly of positively charged spheres having same
A.	color
B.	shape
C.	radii
D.	none of these
Answer» D. none of these

Discussion

7.	Polymorphs have different
A.	color
B.	surface area
C.	chemical properties
D.	physical properties
Answer» E.

Discussion

8.	Copper and gold crystals are
A.	cubic
B.	rhombic
C.	circular
D.	needle like
Answer» B. rhombic

Discussion

9.	Gamma is angle which occurs between
A.	a and b
B.	b and c
C.	c and d
D.	a and c
Answer» B. b and c

Discussion

10.	Energy change is called as enthalpy change, when it occurs at
A.	varied pressure
B.	constant volume
C.	varied volume
D.	constant pressure
Answer» E.

Discussion

11.	Electrical and thermal properties for some crystalline solids depend upon
A.	surface
B.	area
C.	direction
D.	density
Answer» D. density

Discussion

12.	Blockages in veins can be detected by use of
A.	skin thermography
B.	liver thermography
C.	environment thermography
D.	all of these
Answer» B. liver thermography

Discussion

13.	Ammonia has molar heat of vaporization, whose value in kJ/mole is
A.	21.7
B.	99
C.	78
D.	71
Answer» B. 99

Discussion

14.	95.5 degree Celsius is a transition temperature for
A.	tin
B.	Sulphur
C.	sodium
D.	glucose
Answer» C. sodium

Discussion

15.	Electrical properties of solid iodine include that it is
A.	non conductor
B.	conductor
C.	poor conductor
D.	moderate conductor
Answer» D. moderate conductor

Discussion

16.	Usually covalent crystals have
A.	one dimension
B.	two dimension
C.	three dimension
D.	five dimension
Answer» D. five dimension

Discussion

17.	In parallel layers of ionic solids, ions which are above one another have
A.	same charge
B.	opposite charge
C.	no charge
D.	small charge
Answer» C. no charge

Discussion

18.	Crystalline solids posses
A.	distinctive shape
B.	distinctive color
C.	distinctive shine
D.	distinctive density
Answer» B. distinctive color

Discussion

19.	Coefficient of thermal expansion is a property which is
A.	chemical property
B.	physical property
C.	virtual property
D.	solid property
Answer» C. virtual property

Discussion

20.	When crystalline solids' properties are changed with respect to direction phenomenon is called
A.	spectroscopy
B.	anisotropy
C.	spectrometry
D.	none of these
Answer» C. spectrometry

Discussion

21.	Strength of intermolecular as compared with intramolecular forces is
A.	more
B.	less
C.	same
D.	double
Answer» C. same

Discussion

22.	Structure of covalent compounds is
A.	closed
B.	open
C.	compact
D.	box like
Answer» C. compact

Discussion

23.	Balls' layers in cube close packing which are in front of each other are
A.	twelfth
B.	tenth
C.	thirteenth
D.	sixteenth
Answer» C. thirteenth

Discussion

24.	Ice is an example of
A.	non polar molecular solid
B.	polar molecular solid
C.	neutral molecular solid
D.	polar and non-polar molecular solid
Answer» C. neutral molecular solid

Discussion

25.	If we want to obtain crystals from liquid then we do
A.	fast cooling
B.	moderate cooling
C.	mixing
D.	slow cooling
Answer» E.

Discussion

26.	Forms of elements showing allotropy are called
A.	allotropes
B.	polymorphs
C.	cubic forms
D.	isomorphs
Answer» B. polymorphs

Discussion

27.	With help of energy gap in metals, we can determine their
A.	size
B.	properties
C.	color
D.	shape
Answer» C. color

Discussion

28.	40.6 kilojoules per mole is molar heat of vaporization for
A.	alcohol
B.	water
C.	Sulphur
D.	crystals
Answer» C. Sulphur

Discussion

29.	Enthalpy changes are usually
A.	negative
B.	neutral
C.	positive
D.	without change
Answer» D. without change

Discussion

30.	Depressions among two layers of metals are also known as
A.	voids
B.	holes
C.	window
D.	shuttle
Answer» B. holes

Discussion

31.	Glycerin can be easily purified by use of
A.	vacuum distillation
B.	simple distillation
C.	extended distillation
D.	boiling
Answer» B. simple distillation

Discussion

32.	Maximum value of enthalpy change is for
A.	molar heat of fusion
B.	molar heat of vaporization
C.	molar heat of diffusion
D.	molar heat of pressure
Answer» B. molar heat of vaporization

Discussion

33.	Crystals of sodium nitrite are
A.	orthorhombic
B.	rhombohedral
C.	cubic
D.	circle
Answer» C. cubic

Discussion

34.	At 1489 torr boiling point of water, in degree Celsius is
A.	134
B.	120
C.	145
D.	168
Answer» C. 145

Discussion

35.	In ionic solids repulsion between layers can be developed by
A.	high force
B.	small force
C.	very little force
D.	very high force
Answer» C. very little force

Discussion

36.	Accurate method of studying of Avogadro's number is study of
A.	crystalline solids
B.	metallic solids
C.	non metallic solids
D.	molecules
Answer» B. metallic solids

Discussion

37.	Angle in cubic system between edges is
A.	90 degree
B.	60 degree Celsius
C.	57 degree
D.	40 degree
Answer» B. 60 degree Celsius

Discussion

38.	Liquid crystals are usually composed of
A.	circular molecules
B.	rod like molecules
C.	oval molecules
D.	triangular molecules
Answer» C. oval molecules

Discussion

39.	Another name for rhombohedral system is
A.	trigonal system
B.	monoclinic system
C.	rhombic system
D.	hexagonal system
Answer» B. monoclinic system

Discussion

40.	Lattice energy is decreased when size of anion is
A.	decreased
B.	increased
C.	remains same
D.	no change
Answer» C. remains same

Discussion

41.	London dispersion forces are increased by increase in
A.	distortion of electronic cloud
B.	volume
C.	temperature
D.	energy
Answer» B. volume

Discussion

42.	Location of atoms and ions in a crystal are shown by
A.	triangles
B.	squares
C.	ovals
D.	points
Answer» E.

Discussion

43.	When molten crystalline solids are cooled rapidly particles do not have
A.	volume
B.	time for arrangement
C.	density
D.	temperature
Answer» C. density

Discussion

44.	Metals can be hammered into different shapes and drawn into wires hence they are
A.	soft
B.	malleable
C.	strong
D.	weaker
Answer» C. strong

Discussion

45.	In crystal lattice unit cell is actually
A.	smallest figure
B.	lines
C.	points
D.	crystals
Answer» B. lines

Discussion

46.	Energy is changed when matter undergoes
A.	chemical change
B.	physical change
C.	pressure change
D.	volume change
Answer» C. pressure change

Discussion

47.	In liquid state ionic solids can conduct
A.	electricity
B.	heat
C.	liquid
D.	energy
Answer» B. heat

Discussion

48.	Molecules in solids have strong
A.	cohesive forces
B.	repulsive forces
C.	gaseous forces
D.	magnetic forces
Answer» B. repulsive forces

Discussion

49.	Appearance of structure of iodine is in form of
A.	cube lattice
B.	layer lattice
C.	compact lattice
D.	hexagonal lattice
Answer» C. compact lattice

Discussion

50.	Shape of crystals of tin oxide and magnesium oxide is
A.	cubic
B.	tetragonal
C.	monoclinic
D.	rhombic
Answer» C. monoclinic

Discussion

Explore topic-wise MCQs in Testing Subject.

Vapor pressure in manometric method is measured with help of

If we cool molten crystalline solids rapidly they form

Dimensions of unit cell are present along

Early diagnosis of breast cancer is possible by use of

Crystals of phosphorus and carbon dioxide are

In metals there is assembly of positively charged spheres having same

Polymorphs have different

Copper and gold crystals are

Gamma is angle which occurs between

Energy change is called as enthalpy change, when it occurs at

Electrical and thermal properties for some crystalline solids depend upon

Blockages in veins can be detected by use of

Ammonia has molar heat of vaporization, whose value in kJ/mole is

95.5 degree Celsius is a transition temperature for

Electrical properties of solid iodine include that it is

Usually covalent crystals have

In parallel layers of ionic solids, ions which are above one another have

Crystalline solids posses

Coefficient of thermal expansion is a property which is

When crystalline solids' properties are changed with respect to direction phenomenon is called

Strength of intermolecular as compared with intramolecular forces is

Structure of covalent compounds is

Balls' layers in cube close packing which are in front of each other are

Ice is an example of

If we want to obtain crystals from liquid then we do

Forms of elements showing allotropy are called

With help of energy gap in metals, we can determine their

40.6 kilojoules per mole is molar heat of vaporization for

Enthalpy changes are usually

Depressions among two layers of metals are also known as

Glycerin can be easily purified by use of

Maximum value of enthalpy change is for

Crystals of sodium nitrite are

At 1489 torr boiling point of water, in degree Celsius is

In ionic solids repulsion between layers can be developed by

Accurate method of studying of Avogadro's number is study of

Angle in cubic system between edges is

Liquid crystals are usually composed of

Another name for rhombohedral system is

Lattice energy is decreased when size of anion is

London dispersion forces are increased by increase in

Location of atoms and ions in a crystal are shown by

When molten crystalline solids are cooled rapidly particles do not have

Metals can be hammered into different shapes and drawn into wires hence they are

In crystal lattice unit cell is actually

Energy is changed when matter undergoes

In liquid state ionic solids can conduct

Molecules in solids have strong

Appearance of structure of iodine is in form of

Shape of crystals of tin oxide and magnesium oxide is